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antibodies to some swine diseases in commercial piggeries in central zambia.

blood samples were taken from 121 sows and gilts on 7 commercial piggeries located around lusaka (zambia). the samples tested negative for antibodies to aujeszky's disease, transmissible gastroenteritis (tge), swine influenza, hog cholera and brucellosis. seventy-eight pigs from 5 farms had positive titres to porcine parvovirus. eighteen sera showed positive titres to leptospira celledoni.